org.apache.hadoop.hive.ql.optimizer.calcite

Class HiveRelOptUtil

java.lang.Object

org.apache.calcite.plan.RelOptUtil

org.apache.hadoop.hive.ql.optimizer.calcite.HiveRelOptUtil

public class HiveRelOptUtil
extends org.apache.calcite.plan.RelOptUtil

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptUtil

org.apache.calcite.plan.RelOptUtil.InputFinder, org.apache.calcite.plan.RelOptUtil.InputReferencedVisitor, org.apache.calcite.plan.RelOptUtil.Logic, org.apache.calcite.plan.RelOptUtil.RexInputConverter, org.apache.calcite.plan.RelOptUtil.SubqueryType, org.apache.calcite.plan.RelOptUtil.TypeDumper, org.apache.calcite.plan.RelOptUtil.VariableUsedVisitor

Field Summary

Fields inherited from class org.apache.calcite.plan.RelOptUtil

CALC_PREDICATE, EPSILON, FILTER_PREDICATE, PROJECT_PREDICATE

Constructor Summary

Constructors

Constructor and Description
HiveRelOptUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static org.apache.calcite.rex.RexNode	splitJoinCondition(List<org.apache.calcite.rel.type.RelDataTypeField> sysFieldList, List<org.apache.calcite.rel.RelNode> inputs, org.apache.calcite.rex.RexNode condition, List<List<org.apache.calcite.rex.RexNode>> joinKeys, List<Integer> filterNulls, List<org.apache.calcite.sql.SqlOperator> rangeOp) Splits out the equi-join (and optionally, a single non-equi) components of a join condition, and returns what's left.
static org.apache.calcite.rex.RexNode	splitJoinCondition(List<org.apache.calcite.rel.type.RelDataTypeField> sysFieldList, org.apache.calcite.rel.RelNode leftRel, org.apache.calcite.rel.RelNode rightRel, org.apache.calcite.rex.RexNode condition, List<org.apache.calcite.rex.RexNode> leftJoinKeys, List<org.apache.calcite.rex.RexNode> rightJoinKeys, List<Integer> filterNulls, List<org.apache.calcite.sql.SqlOperator> rangeOp) Splits out the equi-join (and optionally, a single non-equi) components of a join condition, and returns what's left.

Methods inherited from class org.apache.calcite.plan.RelOptUtil

addTrait, adjustKeys, analyzeSimpleEquiJoin, andJoinFilters, areRowTypesEqual, checkProjAndChildInputs, classifyFilters, conjunctions, contains, countJoins, createCastRel, createCastRel, createDistinctRel, createDmlRowType, createEquiJoinCondition, createExistsPlan, createExistsPlan, createFilter, createFilter, createFilter, createFilter, createNullFilter, createProject, createProject, createProject, createProject, createProject, createProject, createProjectJoinRel, createRename, createRenameRel, createSingleValueAggRel, createSwappedJoinExprs, decomposeConjunction, decomposeConjunction, decomposeDisjunction, disjunctions, dumpPlan, dumpType, eq, equal, equalType, getContext, getFieldTypeList, getVariablesSet, getVariablesSetAndUsed, getVariablesUsed, go, isDistinctFrom, isEqui, permutation, permute, permute, projectJoinInputs, projectMapping, projectMultiJoin, pushFilterPastProject, registerAbstractRels, renameIfNecessary, replace, replaceInput, simplifyJoin, splitCorrelatedFilterCondition, splitCorrelatedFilterCondition, splitFilters, splitJoinCondition, toString, toString, verifyTypeEquivalence

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HiveRelOptUtil

public HiveRelOptUtil()

Method Detail

splitJoinCondition

public static org.apache.calcite.rex.RexNode splitJoinCondition(List<org.apache.calcite.rel.type.RelDataTypeField> sysFieldList,
                                                org.apache.calcite.rel.RelNode leftRel,
                                                org.apache.calcite.rel.RelNode rightRel,
                                                org.apache.calcite.rex.RexNode condition,
                                                List<org.apache.calcite.rex.RexNode> leftJoinKeys,
                                                List<org.apache.calcite.rex.RexNode> rightJoinKeys,
                                                List<Integer> filterNulls,
                                                List<org.apache.calcite.sql.SqlOperator> rangeOp)

Splits out the equi-join (and optionally, a single non-equi) components of a join condition, and returns what's left. Projection might be required by the caller to provide join keys that are not direct field references.

Parameters:

sysFieldList - list of system fields

leftRel - left join input

rightRel - right join input

condition - join condition

leftJoinKeys - The join keys from the left input which are equi-join keys

rightJoinKeys - The join keys from the right input which are equi-join keys

filterNulls - The join key positions for which null values will not match. null values only match for the "is not distinct from" condition.

rangeOp - if null, only locate equi-joins; otherwise, locate a single non-equi join predicate and return its operator in this list; join keys associated with the non-equi join predicate are at the end of the key lists returned

Returns:

What's left, never null

splitJoinCondition

public static org.apache.calcite.rex.RexNode splitJoinCondition(List<org.apache.calcite.rel.type.RelDataTypeField> sysFieldList,
                                                List<org.apache.calcite.rel.RelNode> inputs,
                                                org.apache.calcite.rex.RexNode condition,
                                                List<List<org.apache.calcite.rex.RexNode>> joinKeys,
                                                List<Integer> filterNulls,
                                                List<org.apache.calcite.sql.SqlOperator> rangeOp)

Splits out the equi-join (and optionally, a single non-equi) components of a join condition, and returns what's left. Projection might be required by the caller to provide join keys that are not direct field references.

Parameters:

sysFieldList - list of system fields

inputs - join inputs

condition - join condition

joinKeys - The join keys from the inputs which are equi-join keys

filterNulls - The join key positions for which null values will not match. null values only match for the "is not distinct from" condition.

rangeOp - if null, only locate equi-joins; otherwise, locate a single non-equi join predicate and return its operator in this list; join keys associated with the non-equi join predicate are at the end of the key lists returned

Returns:

What's left, never null